Cool little hex tool

GDC Zip Hex. Ran across an image somewhere and thought it looked interesting.
$11.25 from Amazon.ca. Arrived today and I've played with it a bit. Nice and light, enough leverage to tighten a seat post, more than enough to adjust a stem etc. Probably not big enough for crank rings or anything tough.
Be handy to attach to the outside of a pack, easier than getting a multitool out.